create_email_draft · Gmail MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_email_draft does on Gmail MCP Server

AI agents use create_email_draft to create or update resources in Gmail MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Gmail MCP Server environment.

WHY IT NEEDS A POLICY

Why create_email_draft needs a policy

Creating an email draft modifies user data by adding a new draft message to their Gmail account. This is a Write operation—reversible, with no side effects beyond data creation. While the tool description is empty, the name is clear and consistent with the server's stated draft management capabilities.

From the tool's definition Tool name 'create_email_draft' indicates creation of email drafts. Server description confirms it 'support[s] advanced features including draft management'.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_email_draft Rate-limited

create_email_draft stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_email_draft": {
      "limits": [
        {
          "counter": "create_email_draft_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Gmail MCP Server, so you can run agents against it safely.

FAQ

Questions about create_email_draft

What does the create_email_draft tool do? +

create_email_draft. It is categorised as a Write tool in the Gmail MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_email_draft? +

Register the Gmail MCP Server MCP server in PolicyLayer and add a rule for create_email_draft: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Gmail MCP Server. Nothing to install.

What risk level is create_email_draft? +

create_email_draft is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit create_email_draft? +

Yes. Add a rate_limit block to the create_email_draft rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block create_email_draft completely? +

Set action: deny in the PolicyLayer policy for create_email_draft. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides create_email_draft? +

create_email_draft is provided by the Gmail MCP Server MCP server (xiangwanggithub/gmail-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.